WO2012156558A2 - Two-part grinder for machining - Google Patents

Two-part grinder for machining Download PDF

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Publication number
WO2012156558A2
WO2012156558A2 PCT/ES2012/070309 ES2012070309W WO2012156558A2 WO 2012156558 A2 WO2012156558 A2 WO 2012156558A2 ES 2012070309 W ES2012070309 W ES 2012070309W WO 2012156558 A2 WO2012156558 A2 WO 2012156558A2
Authority
WO
WIPO (PCT)
Prior art keywords
abrasion
abrasion element
support
wheel
zone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/ES2012/070309
Other languages
Spanish (es)
French (fr)
Other versions
WO2012156558A3 (en
WO2012156558A4 (en
Inventor
Alberto Oliva Flores
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HERRAMIENTAS DE DIAMANTE SA
Original Assignee
HERRAMIENTAS DE DIAMANTE SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HERRAMIENTAS DE DIAMANTE SA filed Critical HERRAMIENTAS DE DIAMANTE SA
Publication of WO2012156558A2 publication Critical patent/WO2012156558A2/en
Publication of WO2012156558A3 publication Critical patent/WO2012156558A3/en
Publication of WO2012156558A4 publication Critical patent/WO2012156558A4/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
    • B24D7/066—Grinding blocks; their mountings or supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/16—Bushings; Mountings

Definitions

  • the present invention relates to a wheel for the machining of parts, where the wheel essentially comprises two parts.
  • One of the parts is fixed and the other part is removable, so that the removable part is universal and quickly replaceable, the removable part being the one that comes into direct contact with the workpiece.
  • the fixed part is particularized for the machine that performs the machining.
  • the field of application of the present invention is any field related to systems, devices, tools and machines for machining materials (parts, elements, etc.), and especially, the edging and bevelling of glass.
  • Wheels for machining parts which are made in one piece, are known in the state of the art. Commonly, this piece is circular in shape and comprises several layers of substrates depending on the material to be machined.
  • An example of this type of machining wheel is the machining wheel disclosed in the document with publication number US-A-4907376. This document discloses a wheel with a bottom layer and a top layer for strong abrasion and weak abrasion, respectively.
  • machining wheels of the prior art are diverse and are associated with different aspects.
  • One aspect is related to the universality of the machining wheel. That is, each machine, or device where these molars are housed, has a grinding system of its own. This implies that specific machining wheels have to be manufactured for each machine.
  • the wheel of the present invention solves the problems described above since the machining wheel of the present invention is divided into two parts, one fixed (adapted to each machining machine) and another of universal wear and easily removable.
  • the invention comprises a machining wheel comprised of two separable parts that form separate individual entities but at the same time complementary, that is, they are interrelated products such as an emitter and a receiver or a male plug and a female plug.
  • One of the parts, the wheel support, is fixed to the machine or machining device and the other part, the abrasion element, is removable, so that the removable part is universal and quickly replaceable.
  • the Fixed part is particularized for the machine that carries out the machining process.
  • the abrasion element comprises predetermined contact surfaces with the wheel support, and the wheel support comprises contact surfaces also predetermined with the abrasion element , such that the shape and dimensions of both predetermined contact surfaces (ie, those referring to the abrasion element and the wheel support) are in correspondence.
  • the wheel support will comprise, in the contact part with the abrasion element, the contact surfaces with the abrasion element. abrasion also universal and, in the part of contact with the machine or machining system, a specific shape and dimensions adapted to each particular machine or machining system.
  • the contact surfaces of both the abrasion element and the wheel support ensure the correct reception of the abrasion element in the wheel support while providing the correct functioning of the assembly (two part grindstone) formed by the abrasion element and the wheel support when the assembly rotates at the usual working speeds.
  • a wheel support is proposed, which is designed to receive and retain an abrasive element that is interchangeable.
  • the wheel support comprises a body of the support, which is configured to receive and retain an abrasion element such that the abrasion element is interchangeable.
  • the wheel support body comprises at least one contact surface with the complementary abrasion element of the contact surface included in the abrasion element. Therefore, the wheel support body comprises at least one of the predetermined surfaces (in shape and dimensions) of contact of the wheel support with the abrasion element mentioned above.
  • the support body additionally comprises retaining means that retain the abrasion element.
  • the retention means are comprised of at least one magnet.
  • the retaining means are comprised of at least one drive pin.
  • the retaining means are comprised of at least one magnet and at least one drive pin.
  • the retention means are comprised of at least one threaded hole made in the support body and at least one threaded element, such that the threaded element passes through a hole provided in the abrasion element to be retained in the threaded hole.
  • the support body additionally comprises at least one balancing hole that keeps the support body balanced when the support body rotates at a predetermined angular velocity.
  • the number, height and thickness of the balancing holes is variable and depends on each particular case.
  • the support body additionally comprises at least one machine / support fixing means for fixing the support body to a machining machine or, in general, to any system of machining That is, the machine / support fixing means in the wheel support comprise some complementary fixing elements of the fixing elements included in the machining machine.
  • the support body additionally comprises at least one duct / extraction groove that channels out residues produced during a machining process and, in addition, the waste Pipeline / extraction slot allows rapid removal of the abrasion element.
  • the magnet is comprised in the body of the support and, optionally, is covered by a plug.
  • the wheel holder is circular in shape.
  • any of the parts included in the wheel holder is also circular in shape.
  • the support body is made of any material.
  • the preferred materials for the manufacture of the wheel support are: thermoplastic polyester (PET, PBT), bakelite, resins, aluminum, steel and plastic.
  • an abrasion element is proposed that is designed to be received and retained by a wheel support such that the abrasion element is interchangeable.
  • the abrasion element comprises a body of the abrasion element such that the body of the abrasion element is configured to be received and retained by the body of the support comprised in the wheel support defined in any one of the embodiments of the invention described above for the first aspect of the invention.
  • the body of the abrasion element comprises the predetermined contact surfaces that correspond to the predetermined contact surfaces comprised in the body of the tooth support. Therefore, the body of the abrasion element comprises the predetermined surfaces of contact of the abrasion element with the wheel support.
  • the body of the abrasion element comprises a paramagnetic zone, such that the paramagnetic zone is configured to be received and retained by the support body comprised in the wheel support defined in a any of the embodiments of the invention described above.
  • the paramagnetic zone forms, at least partially, the body of the abrasion element, such that the abrasion element is retained by the magnet or magnets comprised in the wheel support defined in the first aspect of the invention. If the paramagnetic zone fully forms the body of the abrasion element, both terms designate the same technical characteristic (element).
  • the abrasion element additionally comprises a feed hole complementary to the feed pin defined in embodiments described above.
  • the abrasion element further comprises an abrasion zone made of a predetermined compound with abrasive properties, where the abrasion zone is located on the body of the abrasion element or on the paramagnetic zone, which conforms to total or partial form the abrasion element body (in case of the preferred embodiment).
  • the body of the abrasion element (the paramagnetic zone in the preferred embodiment of the invention) additionally comprises at least one balancing hole that keeps the abrasion element balanced when the abrasion element rotates at an angular speed.
  • the number, height and thickness of the balancing holes is variable and depends on each particular case.
  • the abrasion element additionally comprises an intermediate zone located between the abrasion zone and the body of the abrasion element or between the abrasion zone and the paramagnetic zone, which totally or partially forms the body of the abrasion element (in case of the preferred embodiment of the invention).
  • the body of the abrasion element comprises at least one through hole in correspondence with the threaded hole provided in the wheel holder, such that the abrasion element is retained by the wheel holder by means of an element screwed.
  • the threaded element can be a screw or the like.
  • the body of the abrasion element is made of a material whose physical properties are selected from non-paramagnetic and paramagnetic (preferred embodiment of the invention). The choice of one type of material or another is associated with the specific embodiment, and more particularly, with the retaining means that retain the abrasion element in the wheel support.
  • the body of the abrasion element can be weak paramagnetic or strong paramagnetic (also known as ferromagnetic).
  • the most commonly used elements are Aluminum, the Magnesium, Titanium and Tungsten.
  • the strong paramagnetic materials (ferromagnetic) the most commonly used elements are Iron and Steel.
  • the non-paramagnetic materials the most commonly used are thermoplastic polyester (PET, PBT), bakelite, resins and plastic.
  • the abrasion element is circular.
  • any of the parts included in the abrasion element also has a circular shape.
  • a two-part grinding wheel is proposed for machining.
  • the two part grinding wheel for machining of the present invention comprises a wheel support according to any one of the embodiments of the invention associated with the wheel support, and an abrasion element according to any one of the associated embodiments of the invention to the abrasion element.
  • abrasion element according to any one of the associated embodiments of the invention to the abrasion element.
  • water-resistant lubricating grease can be placed between the contact surfaces between the wheel support and the abrasion element.
  • both parts comprise an H7 / h7 tolerance (defined according to the ISO system of tolerances and adjustments EN20286-2: 1993) or lower in their contact surfaces.
  • the wheel support and the abrasion element comprise flat contact surfaces between both elements that maximize the contact area between both elements, of such so that the reception and retention of the abrasion element by the wheel support is optimized.
  • the abrasion element comprises a horizontal flat surface and a vertical flat surface of contact with the wheel support, where both flat surfaces are respectively complementary to a horizontal flat surface and a vertical flat surface comprised in the wheel support. . So that the reception and retention of the abrasion element by the wheel support is optimized both in the form of construction and operation, both parts comprise an H7 / h7 tolerance (defined according to the ISO system of tolerances and adjustments EN20286-2: 1993 ) or lower on its vertical flat surfaces.
  • Figure 1. Shows a perspective view of the wheel in two separable parts for machining according to the present invention.
  • FIGs 2A and 2B.- They show, respectively, an elevation view along the cutting line A-B and in plan of the wheel in two parts of the present invention shown in Figure 1.
  • FIGS 3A and 3B.- show, respectively, an elevation view along the C-D and plan section of the wheel support of the present invention shown in Figure 1.
  • Figures 4A and 4B. They show, respectively, an elevational and plan view of the abrasion element of the present invention shown in Figure 1.
  • Figures 5A and 5B. They show, respectively, an elevation and plan view of an abrasion element whose abrasion profile is inclined internally and externally.
  • Figures 6A and 6B show, respectively, an elevation and plan view of an abrasion element whose abrasion profile additionally comprises radially distributed grooves.
  • Figures 7A and 7B.- They show, respectively, an elevation and plan view of an abrasion element whose abrasion profile additionally comprises grooves distributed radially and inclined.
  • Figures 8A and 8B show, respectively, an elevation and plan view of an abrasion element whose abrasion profile is half-round and additionally comprises radially distributed partial grooves.
  • Figures 9A and 9B.- They show, respectively, an elevation and plan view of an abrasion element whose abrasion profile is rounded and additionally comprises grooves distributed radially and inclined.
  • Figures 10A and 10B.- They show, respectively, an elevation view along the E-F cutting line and a plan view of the optimized grinding wheel support for resin abrasion elements.
  • Figures 11A and 11B.- They show, respectively, an elevation and plan view of a resin type abrasion element and straight profile of the abrasion zone.
  • Figures 12A and 12B show, respectively, an elevation and plan view of a resin type abrasion element and straight profile of the abrasion zone with radially inclined internal grooves.
  • Figures 13A and 13B.- They show, respectively, an elevation view, along the line of cut ABC, and in plan of the wheel in two parts of the present invention for a screw retention system between the abrasion element and the wheel support.
  • Figures 14A and 14B.- show, respectively, an elevation view, along the cutting line A-B-C, and in plan view of the wheel support of the present invention shown in Figures 13A and 13B.
  • Figures 15A and 15B show, respectively, an elevation and plan view of the abrasion element of the present invention shown in Figures 13A and 13B.
  • FIG. 1 shows a perspective view of the wheel in two separable parts for machining according to the present invention.
  • the wheel 1 comprises a wheel support 2 (corresponds to the fixed part that is fixed to the machining machine), and an abrasion element 3 (which corresponds to the removable part).
  • the wheel support 2 according to the view provided by Figure 1, comprises a magnet 10, a drag pin 11, two pipe grooves 12, a receiving hole of the magnet 13, a plug of the magnet 14, a body of the support grinding wheel 15, three balancing holes of the grinding wheel support 17 and machine / support fixing means comprised of a complementary fixing hole 16 of the grinding means machine / support fixing included in the machine (not shown).
  • the means the machine / support fixing means included in the machine may comprise a threaded rod that passes through the hole 16 and an internally threaded nut.
  • the abrasion element 3 is universal and independent of the machining machine.
  • the abrasion element 3, according to the view provided by Figure 1, has a circular shape and also comprises the following elements: an abrasion zone 4, a body of the abrasion element 5 manufactured entirely by a paramagnetic material (paramagnetic zone) , an intermediate zone 9, a drag hole of the abrasion element 6, three balancing holes of the abrasion element 7 and a bonding adhesive (not shown) that joins the abrasion zone 4 with the intermediate zone 9 and also the zone intermediate 9 with the paramagnetic zone 5.
  • Figure 1 additionally shows that both the wheel holder 2 and the abrasion element 3 comprise flat contact surfaces between both elements that maximize the contact area between both elements, such that the reception and retention of the abrasion element by of the tooth support are optimized.
  • the abrasion element 3 comprises a horizontal flat surface 25A and a vertical flat surface 25B in contact with the wheel support 2, where both flat surfaces are respectively complementary to a horizontal flat surface 24A and a vertical flat surface 24B comprised in the wheel holder 2.
  • both parts comprise an H7 / h7 tolerance (defined according to the ISO system of tolerances and adjustments EN20286-2: 1993) or lower in its vertical flat surfaces.
  • the magnets shown in Figure 1 and which are also preferably used in all embodiments of the invention are neodymium magnets, which are permanent magnets of Ne.Fe.B alloy, with great power, 6 times more than ferrite magnets.
  • the paramagnetic zone shown in Figure 1 is made of steel, that is, a strong paramagnetic material (ferromagnetic) to be able to withstand the typical angular speed of this type of wheel (between 2,500 and 3,500 rpm for a circular wheel of diameter 150 mm).
  • the abrasion zone 4 is arranged perimetrically along the abrasion element 3 and represents the contact area with the workpiece.
  • the profile of the contact area of the abrasion zone 4 comprises a flat internal zone 18 followed by an external chamfer type zone 19.
  • the abrasion zone 4 of Figure 1 is of the metallic type, that is, the abrasion zone 4 is composed of a mixture of diamond and metal dust. Since the mechanization implies different forms of treatment of the piece to be machined, for example: edging, chamfering, fine finishing, etc., the abrasion zone 4 has different embodiments by shape and composition adapted to said forms of treatment. Some of the embodiments of the abrasion zone are presented below as embodiments of the invention.
  • Figures 2A and 2B show, respectively, an elevation and plan view of the wheel in two parts 1 of the present invention shown in Figure 1. To represent the elevation, a cut has been made along the line AB shown in plan view.
  • the abrasion zone 4 of the two-part grinding wheel for machining 1 is specifically configured to machine flat glass.
  • the two parts of the wheel 1 shown in Figures 2A and 2B are attached to each other in working configuration to perform the machining (edging and chamfering) of flat glass.
  • the embodiment shown in Figures 2A and 2B comprises the wheel support 2 which is particularized for the machining machine model called Bovone.
  • the wheel holder 2 comprises six magnets 10, three drag lugs 11, three channeling / extraction grooves 12, six magnet receiving holes 13, six magnet plugs 14, a wheel support body 15, a fixing hole of the wheel support body 16 as a means of fixing machine / support and three balancing holes of the wheel support 17.
  • the abrasion element 3 that is universal and independent of the machining machine has a circular shape and is also comprised of the following elements: the abrasion zone 4, the paramagnetic zone 5 (abrasion element body), the intermediate zone 9, three drag holes of the abrasion element 6, three balancing holes of the abrasion element 7 and a bonding adhesive (not shown) that joins the abrasion zone 4 with the intermediate zone 9 and also the intermediate zone 9 with the paramagnetic zone 5.
  • the abrasion zone 4 is arranged perimetrically along the abrasion element 3 and represents the contact area with the workpiece.
  • the profile of the contact area of the abrasion zone 4 comprises a flat internal zone 18 followed by an external chamfer type zone 19.
  • Figures 3A and 3B show, respectively, an elevation view along the CD and plan cutting line of the wheel support of the present invention shown in Figure 1.
  • the wheel support 2 according to the view provided by Figures 3A and 3B, comprises six magnets 10 distributed equidistant along the circular perimeter of the wheel holder 2, three drag lugs 11 distributed equidistant along the circular perimeter of the wheel holder 2, six magnet receiving holes 13, six magnet plugs 14, a wheel holder body 15, three channeling / extraction slots 12 distributed equidistant along the circular perimeter of the wheel holder 2 connecting the internal and external parts of the wheel body 15, a fixing hole of the wheel holder body 16 and three balancing holes of the wheel holder 17.
  • Figures 4A and 4B show, respectively, an elevational and plan view of the abrasion element of the present invention shown in Figure 1.
  • the abrasion element 3 has a circular shape and is also comprised of the following elements: the area of abrasion 4, the paramagnetic zone 5 (the body of the abrasion element), the intermediate zone 9, three drag holes of the abrasion element 6 distributed equidistant along the circular perimeter of the abrasion element, three balancing holes of the abrasion element 7 and a bonding adhesive (not shown) that joins the abrasion zone 4 with the intermediate zone 9 and also the intermediate zone 9 with the paramagnetic zone 5.
  • the abrasion zone 4 is arranged perimetrically along the element of abrasion 3 and represents the area of contact with the piece to be machined.
  • the profile of the contact area of the abrasion zone 4 comprises a flat inner zone 18 followed by a chamfered inclined outer zone 19.
  • Both the material with which the abrasion zone 4 materializes and the shape of the profile of the abrasion zone 4 are defined by the type of workpiece and by the type of machining process performed on said workpiece.
  • the abrasion zone shown in the Figures 1, 2A-2B, 4A-4B to 9A-9B is of the metallic type, that is, it is a diamond and metal powder composition, although the shapes of the profiles shown in said figures are different.
  • Figures 5A and 5B show, respectively, an elevation and plan view of an abrasion element 3 where the abrasion zone 4 comprises a chamfered inclined internal zone 18 followed by a chamfer inclined external zone 19.
  • Figures 6A and 6B show, respectively, an elevational and plan view of an abrasion element 3 where the abrasion zone 4 comprises a flat internal zone 18 followed by an inclined chamfer-like external zone 19.
  • the abrasion element 3 shown in Figures 6A and 6B differs from those shown in previous figures in that the balancing holes are carried out from the bottom of the abrasion element 3 instead of from the top.
  • the abrasion element 3 also differs from those shown in previous figures in that it does not comprise the intermediate zone 9 and in that it comprises radially arranged slits 20.
  • Figures 7A and 7B show, respectively, an elevation and plan view of an abrasion element 3 where the abrasion zone 4 comprises a flat internal zone 18 followed by an inclined chamfer-like external zone 19 and inclined slits 20 and radial.
  • Figures 8A and 8B show, respectively, an elevational and plan view of an abrasion element 3 with a half-round abrasion profile of the abrasion zone 4 where the abrasion element 3 additionally comprises partial grooves 22 distributed in a manner radial along the perimeter of the abrasion element 3.
  • Figures 9A and 9B show, respectively, an elevation and plan view of an abrasion element 3 with a profile of the rounded abrasion zone 4.
  • He Abrasion element 3 additionally comprises six grooves 21 distributed radially, inclined and equidistant along the perimeter of the abrasion zone 4.
  • the resin type is a composition that is based on mixing diamond dust with polymeric resins.
  • the process of machining parts with this type of abrasion element 3 is optimized with a type of wheel support 2 as disclosed in Figures 10A and 10B.
  • This wheel support 2 additionally comprises on the wheel support 2 shown in Figures 3A and 3B, an internal circular channel groove 8 that communicates with the three channelization / extraction grooves 12 comprised in the wheel support. This internal circular channel groove 8 improves the evacuation of the remains generated during the machining process.
  • Figures 11A and 11B show, respectively, an elevational and plan view of an abrasion element 3 of the resin type and straight profile of the abrasion zone.
  • Figures 12A and 12B show, respectively, an elevational and plan view of a resin-type abrasion element 3 shown in Figures 11A and 11B which have been made radially inclined internal grooves 23.
  • Figures 13A and 13B show, respectively, an elevation view, along the line of cut ABC, and plan of the wheel in two parts of the present invention for a screw retention system between the abrasion element and The tooth support. That is, this embodiment differs from that shown in Figures 2A and 2B in that the set of the six magnets are replaced by a set of three threaded elements (screws) 28. In this way, each threaded element 28 passes through the through holes. 26 of the abrasion element to finally be introduced into the holes threaded 27. Since there are no magnets, the material from which the body of the abrasion element is manufactured does not necessarily need to be of a paramagnetic material.
  • Figures 14A and 14B show, respectively, an elevation view, along the line of cut ABC, and in plan of the wheel support of the present invention shown in Figures 13A and 13B, where the threaded holes 27 are appreciated and the threaded elements 28.
  • Figures 15A and 15B show, respectively, an elevational and plan view of the abrasion element of the present invention shown in Figures 13A and 13B, where through holes 26 are appreciated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

The invention relates to a grinder for machining pieces, said grinder essentially comprising two parts. One of the aforementioned parts is fixed, while the other is removable, such that the removable part is universal and can be quickly replaced. It is the removable part which comes into direct contact with the part being machined. Moreover, the fixed part is customised for the machine being used for machining.

Description

MUELA EN DOS PARTES PARA MECANIZADO  MUELA IN TWO PARTS FOR MACHINING

OBJE TO DE LA INVENCIÓN  OBJECT OF THE INVENTION

La presente invención se refiere a una muela para el mecanizado de piezas, donde la muela comprende esencialmente dos partes. Una de las partes es fija y la otra parte es desmontable, de tal forma que la parte desmontable es universal y rápidamente sustituible, siendo la parte desmontable la que entra en contacto directo con la pieza a mecanizar. Por otro lado, la parte fija está particularizada para la máquina que lleva a cabo el mecanizado .  The present invention relates to a wheel for the machining of parts, where the wheel essentially comprises two parts. One of the parts is fixed and the other part is removable, so that the removable part is universal and quickly replaceable, the removable part being the one that comes into direct contact with the workpiece. On the other hand, the fixed part is particularized for the machine that performs the machining.

El campo de aplicación de la presente invención es todo campo relacionado con sistemas, dispositivos, herramientas y máquinas de mecanizado de materiales (piezas, elementos, etc.), y especialmente, el canteado y biselado de vidrio.  The field of application of the present invention is any field related to systems, devices, tools and machines for machining materials (parts, elements, etc.), and especially, the edging and bevelling of glass.

ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION

Se conoce del estado de la técnica muelas para el mecanizado de piezas, que están realizadas en una sola pieza. Comúnmente, esta pieza es de forma circular y comprende varias capas de sustratos en función del material a mecanizar. Un ejemplo de este tipo de muela de mecanizado, es la muela de mecanizado divulgada en el documento con número de publicación US-A-4907376. Este documento divulga una muela con una capa inferior y una capa superior para una abrasión fuerte y una abrasión débil, respectivamente.  Wheels for machining parts, which are made in one piece, are known in the state of the art. Commonly, this piece is circular in shape and comprises several layers of substrates depending on the material to be machined. An example of this type of machining wheel is the machining wheel disclosed in the document with publication number US-A-4907376. This document discloses a wheel with a bottom layer and a top layer for strong abrasion and weak abrasion, respectively.

Los inconvenientes que presentan las muelas de mecanizado del estado de la técnica son diversos y están asociados a diferentes aspectos. Un aspecto está relacionado con la universalidad de la muela de mecanizado. Es decir, cada máquina, o dispositivo donde se alojan estas muelas, tiene un sistema de sujeción propio de la muela. Ello conlleva que haya que fabricar muelas de mecanizado especificas para cada máquina. The disadvantages of the machining wheels of the prior art are diverse and are associated with different aspects. One aspect is related to the universality of the machining wheel. That is, each machine, or device where these molars are housed, has a grinding system of its own. This implies that specific machining wheels have to be manufactured for each machine.

Otro inconveniente asociado a las muelas de mecanizado del estado de la técnica (mono-pieza) está en el tiempo de sustitución de la muela. El tiempo de sustitución es largo ya que los sistemas de sujeción de la muela a la máquina de mecanizado son difíciles de alcanzar por el operario encargado de sustituir la muela de mecanizado.  Another drawback associated with the machining wheels of the state of the art (mono-piece) is the replacement time of the wheel. The replacement time is long since the grinding systems of the wheel to the machining machine are difficult to reach by the operator in charge of replacing the machining wheel.

Otro inconveniente asociado a las muelas de mecanizado del estado de la técnica (mono-pieza) está en que precisan mayor logística de almacenamiento, transporte y distribución ya que son piezas pesadas y voluminosas. Por el mismo motivo, las muelas de mecanizado del estado de la técnica (mono-pieza) generan mayor residuo y contaminación.  Another drawback associated with the machining wheels of the state of the art (mono-piece) is that they require greater storage, transport and distribution logistics since they are heavy and bulky pieces. For the same reason, the machining wheels of the state of the art (mono-piece) generate more waste and contamination.

No es conocido en el estado actual de la técnica ninguna muela de mecanizado que resuelva los problemas anteriormente descritos.  No machining wheel that solves the problems described above is known in the current state of the art.

DESCRIPCIÓN DE LA INVENCIÓN DESCRIPTION OF THE INVENTION

La muela de la presente invención resuelve los problemas anteriormente descritos dado que la muela de mecanizado de la presente invención está dividida en dos partes, una fija (adaptada a cada máquina de mecanizado) y otra de desgaste universal y fácilmente desmontable.  The wheel of the present invention solves the problems described above since the machining wheel of the present invention is divided into two parts, one fixed (adapted to each machining machine) and another of universal wear and easily removable.

Para lograr los objetivos y evitar los inconvenientes indicados en anteriores apartados, la invención comprende una muela de mecanizado comprendida por dos partes separables que forman entidades individuales separadas pero a la vez complementarias, es decir, son productos inter- relacionados como por ejemplo un emisor y un receptor o un enchufe macho y un enchufe hembra. Una de las partes, el soporte de muela, es fijado a la máquina o dispositivo de mecanizado y la otra parte, el elemento de abrasión, es desmontable, de tal forma que la parte desmontable es universal y rápidamente sustituible. Por otro lado, la parte fija está particularizada para la máquina que lleva a cabo el proceso de mecanizado. In order to achieve the objectives and avoid the inconveniences indicated in previous sections, the invention comprises a machining wheel comprised of two separable parts that form separate individual entities but at the same time complementary, that is, they are interrelated products such as an emitter and a receiver or a male plug and a female plug. One of the parts, the wheel support, is fixed to the machine or machining device and the other part, the abrasion element, is removable, so that the removable part is universal and quickly replaceable. On the other hand, the Fixed part is particularized for the machine that carries out the machining process.

Para que el elemento de abrasión no sólo sea intercambiable, sino que además sea universal, el elemento de abrasión comprende unas superficies de contacto predeterminadas con el soporte de muela, y el soporte de muela comprende unas superficies de contacto también predeterminadas con el elemento de abrasión, tal que la forma y las dimensiones de ambas superficies predeterminadas de contacto (es decir, las referidas al elemento de abrasión y al soporte de muela) están en correspondencia. De esta forma, si la forma y las dimensiones de las superficies de contacto del elemento de abrasión son predeterminadas de forma universal, el soporte de muela comprenderá, en la parte de contacto con el elemento de abrasión, las superficies de contacto con el elemento de abrasión también universales y, en la parte de contacto con la máquina o sistema de mecanizado, una forma y dimensiones concretas adaptadas a cada máquina o sistema de mecanizado en particular. Las superficies de contacto tanto del elemento de abrasión como del soporte de muela aseguran la correcta recepción del elemento de abrasión en el soporte de muela a la vez que proporcionan el correcto funcionamiento del conjunto (muela en dos partes) formado por el elemento de abrasión y el soporte de muela cuando el conjunto gira a las velocidades de trabajo usuales.  So that the abrasion element is not only interchangeable, but also universal, the abrasion element comprises predetermined contact surfaces with the wheel support, and the wheel support comprises contact surfaces also predetermined with the abrasion element , such that the shape and dimensions of both predetermined contact surfaces (ie, those referring to the abrasion element and the wheel support) are in correspondence. Thus, if the shape and dimensions of the contact surfaces of the abrasion element are predetermined universally, the wheel support will comprise, in the contact part with the abrasion element, the contact surfaces with the abrasion element. abrasion also universal and, in the part of contact with the machine or machining system, a specific shape and dimensions adapted to each particular machine or machining system. The contact surfaces of both the abrasion element and the wheel support ensure the correct reception of the abrasion element in the wheel support while providing the correct functioning of the assembly (two part grindstone) formed by the abrasion element and the wheel support when the assembly rotates at the usual working speeds.

En un primer aspecto de la invención, se propone un soporte de muela, el cual está diseñado para recibir y retener un elemento de abrasión que es intercambiable.  In a first aspect of the invention, a wheel support is proposed, which is designed to receive and retain an abrasive element that is interchangeable.

En la realización preferida de la invención asociada al soporte de muela, el soporte de muela comprende un cuerpo del soporte, el cual está configurado para recibir y retener un elemento de abrasión tal que el elemento de abrasión es intercambiable. En esta realización, el cuerpo del soporte de muela comprende al menos una superficie de contacto con el elemento de abrasión complementaria de la superficie de contacto comprendida en el elemento de abrasión. Por tanto, el cuerpo del soporte de muela comprende al menos una de las superficies predeterminadas (en forma y dimensiones) de contacto del soporte de muela con el elemento de abrasión mencionadas anteriormente. El cuerpo del soporte adicionalmente comprende unos medios de retención que retienen el elemento de abrasión. In the preferred embodiment of the invention associated with the wheel support, the wheel support comprises a body of the support, which is configured to receive and retain an abrasion element such that the abrasion element is interchangeable. In this embodiment, the wheel support body comprises at least one contact surface with the complementary abrasion element of the contact surface included in the abrasion element. Therefore, the wheel support body comprises at least one of the predetermined surfaces (in shape and dimensions) of contact of the wheel support with the abrasion element mentioned above. The support body additionally comprises retaining means that retain the abrasion element.

En otra realización de la invención, los medios de retención están comprendidos por al menos un imán.  In another embodiment of the invention, the retention means are comprised of at least one magnet.

En otra realización de la invención, los medios de retención están comprendidos por al menos un tetón de arrastre .  In another embodiment of the invention, the retaining means are comprised of at least one drive pin.

En otra realización de la invención, los medios de retención están comprendidos por al menos un imán y al menos un tetón de arrastre.  In another embodiment of the invention, the retaining means are comprised of at least one magnet and at least one drive pin.

En otra realización de la invención, los medios de retención están comprendidos por al menos un orificio roscado realizado en el cuerpo del soporte y al menos un elemento roscado, tal que el elemento roscado atraviesa un orificio provisto en el elemento de abrasión para ser retenido en el orificio roscado.  In another embodiment of the invention, the retention means are comprised of at least one threaded hole made in the support body and at least one threaded element, such that the threaded element passes through a hole provided in the abrasion element to be retained in the threaded hole.

En otra realización de la invención que comprende una cualquiera de las realizaciones anteriores, el cuerpo del soporte adicionalmente comprende al menos un orificio de equilibrado que mantiene equilibrado el cuerpo del soporte cuando el cuerpo del soporte gira a una velocidad angular predeterminada. El número, altura y grosor de los orificios de equilibrado es variable y depende de cada caso en particular .  In another embodiment of the invention comprising any one of the above embodiments, the support body additionally comprises at least one balancing hole that keeps the support body balanced when the support body rotates at a predetermined angular velocity. The number, height and thickness of the balancing holes is variable and depends on each particular case.

En otra realización de la invención que comprende una cualquiera de las realizaciones anteriores, el cuerpo del soporte adicionalmente comprende al menos unos medios de fijación máquina/soporte para fijar el cuerpo del soporte a una máquina de mecanizado o, en general, a cualquier sistema de mecanizado. Es decir, los medios de fijación máquina/soporte en el soporte de muela comprenden unos elementos de fijación complementarios de los elementos de fijación comprendidos en la máquina de mecanización. In another embodiment of the invention comprising any one of the above embodiments, the support body additionally comprises at least one machine / support fixing means for fixing the support body to a machining machine or, in general, to any system of machining That is, the machine / support fixing means in the wheel support comprise some complementary fixing elements of the fixing elements included in the machining machine.

En otra realización de la invención que comprende una cualquiera de las realizaciones anteriores, el cuerpo del soporte adicionalmente comprende al menos una ranura de canalización/extracción que canaliza hacia el exterior del cuerpo del soporte unos residuos producidos durante un proceso de mecanización y además, la ranura de canalización/extracción permite una rápida extracción del elemento de abrasión.  In another embodiment of the invention comprising any one of the above embodiments, the support body additionally comprises at least one duct / extraction groove that channels out residues produced during a machining process and, in addition, the waste Pipeline / extraction slot allows rapid removal of the abrasion element.

En otra realización de la invención, donde los medios de retención están comprendidos por al menos un imán y opcionalmente por un tetón de arrastre, el imán está comprendido en el cuerpo del soporte y, opcionalmente, está cubierto mediante un tapón.  In another embodiment of the invention, wherein the retaining means are comprised of at least one magnet and optionally a drag pin, the magnet is comprised in the body of the support and, optionally, is covered by a plug.

En otra realización de la invención que comprende una cualquiera de las realizaciones anteriores, el soporte de muela tiene forma circular. Opcionalmente, cualquiera de las partes comprendidas en el soporte de muela también tiene forma circular.  In another embodiment of the invention comprising any one of the above embodiments, the wheel holder is circular in shape. Optionally, any of the parts included in the wheel holder is also circular in shape.

En otra realización de la invención que comprende una cualquiera de las realizaciones anteriores, el cuerpo del soporte está fabricado en cualquier material. Dentro de los materiales preferentes para la fabricación del soporte de muela están: el poliéster termoplástico (PET, PBT) , la baquelita, las resinas, el aluminio, el acero y el plástico .  In another embodiment of the invention comprising any one of the above embodiments, the support body is made of any material. Among the preferred materials for the manufacture of the wheel support are: thermoplastic polyester (PET, PBT), bakelite, resins, aluminum, steel and plastic.

En un segundo aspecto de la invención, se propone un elemento de abrasión que está diseñado para ser recibido y retenido por un soporte de muela de tal forma que el elemento de abrasión es intercambiable. El elemento de abrasión comprende un cuerpo del elemento de abrasión tal que el cuerpo del elemento de abrasión está configurado para ser recibido y retenido por el cuerpo del soporte comprendido en el soporte de muela definido en una cualquiera de las realizaciones de la invención anteriormente descritas para el primer aspecto de la invención . In a second aspect of the invention, an abrasion element is proposed that is designed to be received and retained by a wheel support such that the abrasion element is interchangeable. The abrasion element comprises a body of the abrasion element such that the body of the abrasion element is configured to be received and retained by the body of the support comprised in the wheel support defined in any one of the embodiments of the invention described above for the first aspect of the invention.

Como ha sido descrito anteriormente y para que el elemento de abrasión sea correctamente recibido por el soporte de muela y viceversa, el cuerpo del elemento de abrasión comprende las superficies de contacto predeterminadas que están en correspondencia con las superficies de contacto predeterminadas comprendidas en el cuerpo del soporte de muela. Por tanto, el cuerpo del elemento de abrasión comprende las superficies predeterminadas de contacto del elemento de abrasión con el soporte de muela.  As described above and for the abrasion element to be correctly received by the wheel support and vice versa, the body of the abrasion element comprises the predetermined contact surfaces that correspond to the predetermined contact surfaces comprised in the body of the tooth support. Therefore, the body of the abrasion element comprises the predetermined surfaces of contact of the abrasion element with the wheel support.

En la realización preferida de la invención asociada al elemento de abrasión, el cuerpo del elemento de abrasión comprende una zona paramagnética, tal que la zona paramagnética está configurada para ser recibida y retenida por el cuerpo del soporte comprendido en el soporte de muela definido en una cualquiera de las realizaciones de la invención anteriormente descritas. La zona paramagnética conforma, al menos parcialmente, el cuerpo del elemento de abrasión, de tal forma que el elemento de abrasión es retenido por el imán o imanes comprendidos en el soporte de muela definido en el primer aspecto de la invención. Si la zona paramagnética conforma totalmente el cuerpo del elemento de abrasión, ambos términos designan la misma característica técnica (elemento) .  In the preferred embodiment of the invention associated with the abrasion element, the body of the abrasion element comprises a paramagnetic zone, such that the paramagnetic zone is configured to be received and retained by the support body comprised in the wheel support defined in a any of the embodiments of the invention described above. The paramagnetic zone forms, at least partially, the body of the abrasion element, such that the abrasion element is retained by the magnet or magnets comprised in the wheel support defined in the first aspect of the invention. If the paramagnetic zone fully forms the body of the abrasion element, both terms designate the same technical characteristic (element).

En otra realización de la invención, el elemento de abrasión adicionalmente comprende un orificio de arrastre complementario del tetón de arrastre definido en realizaciones anteriormente descritas.  In another embodiment of the invention, the abrasion element additionally comprises a feed hole complementary to the feed pin defined in embodiments described above.

En otra realización de la invención, el elemento de abrasión adicionalmente comprende una zona de abrasión fabricada en un compuesto predeterminado con propiedades abrasivas, donde la zona de abrasión está situada sobre el cuerpo del elemento de abrasión o sobre la zona paramagnética, la cual conforma de forma total o parcial el cuerpo del elemento de abrasión (en caso de la realización preferida) . In another embodiment of the invention, the abrasion element further comprises an abrasion zone made of a predetermined compound with abrasive properties, where the abrasion zone is located on the body of the abrasion element or on the paramagnetic zone, which conforms to total or partial form the abrasion element body (in case of the preferred embodiment).

En otra realización de la invención, el cuerpo del elemento de abrasión (la zona paramagnética en la realización preferida de la invención) adicionalmente comprende al menos un orificio de equilibrado que mantiene equilibrado el elemento de abrasión cuando el elemento de abrasión gira a una velocidad angular predeterminada. El número, altura y grosor de los orificios de equilibrado es variable y depende de cada caso en particular.  In another embodiment of the invention, the body of the abrasion element (the paramagnetic zone in the preferred embodiment of the invention) additionally comprises at least one balancing hole that keeps the abrasion element balanced when the abrasion element rotates at an angular speed. default The number, height and thickness of the balancing holes is variable and depends on each particular case.

En otra realización de la invención el elemento de abrasión adicionalmente comprende una zona intermedia situada entre la zona de abrasión y el cuerpo del elemento de abrasión o entre la zona de abrasión y la zona paramagnética, la cual conforma de forma total o parcial el cuerpo del elemento de abrasión (en caso de la realización preferida de la invención) .  In another embodiment of the invention the abrasion element additionally comprises an intermediate zone located between the abrasion zone and the body of the abrasion element or between the abrasion zone and the paramagnetic zone, which totally or partially forms the body of the abrasion element (in case of the preferred embodiment of the invention).

En otra realización de la invención, el cuerpo del elemento de abrasión comprende al menos un orificio pasante en correspondencia con el orificio roscado provisto en el soporte de muela, de tal forma que el elemento de abrasión queda retenido por el soporte de muela mediante un elemento roscado. El elemento roscado puede ser un tornillo o similar .  In another embodiment of the invention, the body of the abrasion element comprises at least one through hole in correspondence with the threaded hole provided in the wheel holder, such that the abrasion element is retained by the wheel holder by means of an element screwed. The threaded element can be a screw or the like.

El cuerpo del elemento de abrasión está fabricado por un material cuyas propiedades físicas están seleccionadas entre no paramagnéticas y paramagnéticas (realización preferida de la invención) . La elección de un tipo de material u otro está asociada con la forma de realización concreta, y más particularmente, con los medios de retención que retienen el elemento de abrasión en el soporte de muela. Dentro de los materiales paramagnéticos , el cuerpo del elemento de abrasión puede ser paramagnético débil o paramagnético fuerte (también conocido como ferromagnético ) . Dentro de los materiales paramagnéticos débiles, los elementos más utilizados son el Aluminio, el Magnesio, el Titanio y el Wolframio. Dentro de los materiales paramagnéticos fuertes ( ferromagnéticos ) , los elementos más utilizados son el Hierro y el Acero. Dentro de los materiales no paramagnéticos, los más utilizados son el poliéster termoplástico (PET, PBT) , la baquelita, las resinas y el plástico. The body of the abrasion element is made of a material whose physical properties are selected from non-paramagnetic and paramagnetic (preferred embodiment of the invention). The choice of one type of material or another is associated with the specific embodiment, and more particularly, with the retaining means that retain the abrasion element in the wheel support. Within the paramagnetic materials, the body of the abrasion element can be weak paramagnetic or strong paramagnetic (also known as ferromagnetic). Within the weak paramagnetic materials, the most commonly used elements are Aluminum, the Magnesium, Titanium and Tungsten. Within the strong paramagnetic materials (ferromagnetic), the most commonly used elements are Iron and Steel. Among the non-paramagnetic materials, the most commonly used are thermoplastic polyester (PET, PBT), bakelite, resins and plastic.

En otra realización de la invención que comprende una cualquiera de las realizaciones anteriores, el elemento de abrasión es circular. Opcionalmente, cualquiera de las partes comprendidas en el elemento de abrasión también tiene forma circular.  In another embodiment of the invention comprising any one of the above embodiments, the abrasion element is circular. Optionally, any of the parts included in the abrasion element also has a circular shape.

En un tercer aspecto de la invención, se propone una muela en dos partes para mecanizado. La muela en dos partes para mecanizado de la presente invención comprende un soporte de muela según una cualquiera de las formas de realización de la invención asociadas al soporte de muela, y un elemento de abrasión según una cualquiera de las formas de realización de la invención asociadas al elemento de abrasión. De esta forma se obtienen distintas formas de realización de la invención para la muela en dos partes para mecanizado. Opcionalmente y para evitar la formación residuos entre el soporte de muela y el elemento de abrasión, se puede colocar grasa lubricante resistente al agua entre las superficies de contacto entre el soporte de muela y el elemento de abrasión.  In a third aspect of the invention, a two-part grinding wheel is proposed for machining. The two part grinding wheel for machining of the present invention comprises a wheel support according to any one of the embodiments of the invention associated with the wheel support, and an abrasion element according to any one of the associated embodiments of the invention to the abrasion element. In this way, different embodiments of the invention are obtained for the two-part grinding wheel for machining. Optionally and to avoid the formation of residues between the wheel support and the abrasion element, water-resistant lubricating grease can be placed between the contact surfaces between the wheel support and the abrasion element.

Para todas las formas de realización de la invención, y con objeto de que la recepción y retención del elemento de abrasión por parte del soporte de muela esté optimizado tanto en forma de construcción como de funcionamiento, ambas piezas comprenden una tolerancia H7/h7 (definida según el sistema ISO de tolerancias y ajustes EN20286- 2:1993) o inferior en sus superficies de contacto.  For all embodiments of the invention, and in order that the reception and retention of the abrasion element by the wheel support is optimized in both construction and operation, both parts comprise an H7 / h7 tolerance (defined according to the ISO system of tolerances and adjustments EN20286-2: 1993) or lower in their contact surfaces.

En la realización preferida de la invención, el soporte de muela y el elemento de abrasión comprenden superficie planas de contacto entre ambos elementos que maximizan el área de contacto entre ambos elementos, de tal forma que la recepción y retención del elemento de abrasión por parte del soporte de muela es optimizada. De esta forma, el elemento de abrasión comprende una superficie plana horizontal y una superficie plana vertical de contacto con el soporte de muela, donde ambas superficies planas son respectivamente complementarias de una superficie plana horizontal y de una superficie plana vertical comprendidas en el soporte de muela. Para que la recepción y retención del elemento de abrasión por parte del soporte de muela esté optimizado tanto en forma de construcción como de funcionamiento, ambas piezas comprenden una tolerancia H7/h7 (definida según el sistema ISO de tolerancias y ajustes EN20286-2 : 1993 ) o inferior en sus superficies planas verticales. In the preferred embodiment of the invention, the wheel support and the abrasion element comprise flat contact surfaces between both elements that maximize the contact area between both elements, of such so that the reception and retention of the abrasion element by the wheel support is optimized. Thus, the abrasion element comprises a horizontal flat surface and a vertical flat surface of contact with the wheel support, where both flat surfaces are respectively complementary to a horizontal flat surface and a vertical flat surface comprised in the wheel support. . So that the reception and retention of the abrasion element by the wheel support is optimized both in the form of construction and operation, both parts comprise an H7 / h7 tolerance (defined according to the ISO system of tolerances and adjustments EN20286-2: 1993 ) or lower on its vertical flat surfaces.

A continuación, para facilitar una mejor comprensión de esta memoria descriptiva y formando parte integrante de la misma, se acompañan unas figuras en las que con carácter ilustrativo y no limitativo se ha representado el objeto de la invención.  Next, in order to facilitate a better understanding of this descriptive report and as an integral part thereof, some figures are attached in which the object of the invention has been shown as an illustrative and non-limiting nature.

BREVE DESCRIPCIÓN DE LAS FIGURAS  BRIEF DESCRIPTION OF THE FIGURES

Figura 1.- Muestra una vista en perspectiva de la muela en dos partes separables para mecanizado según la presente invención.  Figure 1.- Shows a perspective view of the wheel in two separable parts for machining according to the present invention.

Figuras 2A y 2B.- Muestran, respectivamente, una vista en alzado a lo largo de la linea de corte A-B y en planta de la muela en dos partes de la presente invención mostrada en la figura 1.  Figures 2A and 2B.- They show, respectively, an elevation view along the cutting line A-B and in plan of the wheel in two parts of the present invention shown in Figure 1.

Figuras 3A y 3B.- Muestran, respectivamente, una vista en alzado a lo largo de la linea de corte C-D y en planta del soporte de muela de la presente invención mostrado en la figura 1.  Figures 3A and 3B.- They show, respectively, an elevation view along the C-D and plan section of the wheel support of the present invention shown in Figure 1.

Figuras 4A y 4B.- Muestran, respectivamente, una vista en alzado y en planta del elemento de abrasión de la presente invención mostrado en la figura 1. Figuras 5A y 5B.- Muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión cuyo perfil de abrasión es inclinado interior y exteriormente . Figures 4A and 4B.- They show, respectively, an elevational and plan view of the abrasion element of the present invention shown in Figure 1. Figures 5A and 5B.- They show, respectively, an elevation and plan view of an abrasion element whose abrasion profile is inclined internally and externally.

Figuras 6A y 6B.- Muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión cuyo perfil de abrasión adicionalmente comprende hendiduras radialmente distribuidas.  Figures 6A and 6B.- They show, respectively, an elevation and plan view of an abrasion element whose abrasion profile additionally comprises radially distributed grooves.

Figuras 7A y 7B.- Muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión cuyo perfil de abrasión adicionalmente comprende hendiduras distribuidas de forma radial e inclinada.  Figures 7A and 7B.- They show, respectively, an elevation and plan view of an abrasion element whose abrasion profile additionally comprises grooves distributed radially and inclined.

Figuras 8A y 8B.- Muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión cuyo perfil de abrasión es medio-redondo y adicionalmente comprende hendiduras parciales distribuidas de forma radial .  Figures 8A and 8B.- They show, respectively, an elevation and plan view of an abrasion element whose abrasion profile is half-round and additionally comprises radially distributed partial grooves.

Figuras 9A y 9B.- Muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión cuyo perfil de abrasión es redondeado y adicionalmente comprende hendiduras distribuidas de forma radial e inclinada.  Figures 9A and 9B.- They show, respectively, an elevation and plan view of an abrasion element whose abrasion profile is rounded and additionally comprises grooves distributed radially and inclined.

Figuras 10A y 10B.- Muestran, respectivamente, una vista en alzado a lo largo de la linea de corte E-F y en planta del soporte de muela optimizado para elementos de abrasión de tipo resina.  Figures 10A and 10B.- They show, respectively, an elevation view along the E-F cutting line and a plan view of the optimized grinding wheel support for resin abrasion elements.

Figuras 11A y 11B.- Muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión de tipo resina y perfil recto de la zona de abrasión.  Figures 11A and 11B.- They show, respectively, an elevation and plan view of a resin type abrasion element and straight profile of the abrasion zone.

Figuras 12A y 12B.- Muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión de tipo resina y perfil recto de la zona de abrasión con hendiduras internas radialmente inclinadas.  Figures 12A and 12B.- They show, respectively, an elevation and plan view of a resin type abrasion element and straight profile of the abrasion zone with radially inclined internal grooves.

Figuras 13A y 13B.- Muestran, respectivamente, una vista en alzado, a lo largo de la linea de corte A-B-C, y en planta de la muela en dos partes de la presente invención para un sistema de retención por tornillos entre el elemento de abrasión y el soporte de muela. Figures 13A and 13B.- They show, respectively, an elevation view, along the line of cut ABC, and in plan of the wheel in two parts of the present invention for a screw retention system between the abrasion element and the wheel support.

Figuras 14A y 14B.- Muestran, respectivamente, una vista en alzado, a lo largo de la linea de corte A-B-C, y en planta del soporte de muela de la presente invención mostrado en las figuras 13A y 13B.  Figures 14A and 14B.- They show, respectively, an elevation view, along the cutting line A-B-C, and in plan view of the wheel support of the present invention shown in Figures 13A and 13B.

Figuras 15A y 15B.- Muestran, respectivamente, una vista en alzado y en planta del elemento de abrasión de la presente invención mostrado en las figuras 13A y 13B.  Figures 15A and 15B.- They show, respectively, an elevation and plan view of the abrasion element of the present invention shown in Figures 13A and 13B.

DESCRIPCIÓN DE UN EJEMPLO DE REALIZACIÓN DE LA INVENCIÓN  DESCRIPTION OF AN EXAMPLE OF EMBODIMENT OF THE INVENTION

Seguidamente se realiza una descripción de un ejemplo de la invención, haciendo referencia a los símbolos empleados en las figuras.  Next, a description is made of an example of the invention, referring to the symbols used in the figures.

Primeramente se facilita un listado con las referencias y los elementos a los que aluden.  First, a list is provided with the references and the elements they refer to.

1 muela en dos partes para mecanizado;  1 grinding wheel in two parts for machining;

2 soporte de muela (parte fija);  2 wheel support (fixed part);

3 elemento de abrasión (parte desmontable) ;  3 abrasion element (removable part);

4 zona de abrasión;  4 abrasion zone;

5 cuerpo del elemento de abrasión (zona paramagnética) 6 orificio de arrastre del elemento de abrasión;  5 abrasion element body (paramagnetic zone) 6 abrasion element drag hole;

7 orificio de equilibrado del elemento de abrasión;  7 balancing hole of the abrasion element;

8 ranura circular interior de canalización;  8 internal circular groove for channeling;

9 zona intermedia;  9 intermediate zone;

10 imán;  10 magnet;

11 tetones de arrastre;  11 drag lugs;

12 ranura de canalización/extracción comprendida en soporte de muela;  12 groove of channeling / extraction included in molar support;

13 orificio receptor del imán y del tapón del imán;  13 receiver hole of the magnet and magnet plug;

14 tapón del imán;  14 magnet plug;

15 cuerpo del soporte de muela;  15 wheel support body;

16 medios de fijación máquina/soporte;  16 fixing means machine / support;

17 orificio de equilibrado de la parte fija;  17 balancing hole of the fixed part;

18 zona interna del perfil de contacto del elemento  18 internal zone of the element's contact profile

abrasión; 19: zona externa del perfil de contacto del elemento de abrasión; abrasion; 19: external area of the contact profile of the abrasion element;

20: hendiduras del elemento de abrasión distribuidas  20: distributed abrasion element grooves

de forma radial;  radially;

21: hendiduras del elemento de abrasión distribuidas  21: distributed abrasion element grooves

de forma radial e inclinada;  radially and inclined;

22: hendiduras parciales del elemento de abrasión;  22: partial grooves of the abrasion element;

23: hendiduras internas radialmente inclinadas del  23: radially inclined internal grooves of the

elemento de abrasión tipo resina;  resin type abrasion element;

24A: superficie plana horizontal de contacto del soporte de muela (con el elemento de abrasión) ;  24A: horizontal flat contact surface of the wheel holder (with the abrasion element);

24B: superficie plana vertical de contacto del soporte de muela (con el elemento de abrasión) ;  24B: vertical flat contact surface of the wheel holder (with the abrasion element);

25A: superficie plana horizontal de contacto del elemento de abrasión (con el soporte de muela) ;  25A: horizontal flat contact surface of the abrasion element (with the wheel support);

25B: superficie plana vertical de contacto del elemento de abrasión (con el soporte de muela) ;  25B: vertical flat surface of contact of the abrasion element (with the wheel support);

26: orificio pasante del elemento de abrasión;  26: through hole of the abrasion element;

27: orificio roscado del cuerpo del soporte de muela; 28: elemento roscado.  27: threaded hole of the wheel holder body; 28: threaded element.

La figura 1 muestra una vista en perspectiva de la muela en dos partes separables para mecanizado según la presente invención. La muela 1 comprende un soporte de muela 2 (se corresponde con la parte fija que es fijada a la máquina de mecanizado) , y un elemento de abrasión 3 (que se corresponde la parte desmontable) . En la forma de realización mostrada en la figura 1, sólo el soporte de muela 2 está particularizado para un modelo en concreto de máquina de mecanizado denominada Bovone . El soporte de muela 2, según la vista proporcionada por la figura 1, comprende un imán 10, un tetón de arrastre 11, dos ranuras de canalización 12, un orificio receptor del imán 13, un tapón del imán 14, un cuerpo del soporte de muela 15, tres orificios de equilibrado del soporte de muela 17 y unos medios de fijación máquina/soporte comprendidos por un orificio de fijación 16 complementarios de los medios de fijación máquina/soporte comprendidos en la máquina (no mostrado) . Los medios los medios de fijación máquina/soporte comprendidos en la máquina pueden comprender un vástago roscado que atraviesa el orificio 16 y una tuerca roscada interiormente. Por otro lado, el elemento de abrasión 3 es universal e independiente de la máquina de mecanizado. El elemento de abrasión 3, según la vista proporcionada por la figura 1, tiene forma circular y además comprende los siguientes elementos: una zona de abrasión 4, un cuerpo del elemento de abrasión 5 fabricado en su totalidad por un material paramagnético (zona paramagnética) , una zona intermedia 9, un orificio de arrastre del elemento de abrasión 6, tres orificios de equilibrado del elemento de abrasión 7 y un adhesivo de unión (no mostrado) que une la zona de abrasión 4 con la zona intermedia 9 y también la zona intermedia 9 con la zona paramagnética 5. Figure 1 shows a perspective view of the wheel in two separable parts for machining according to the present invention. The wheel 1 comprises a wheel support 2 (corresponds to the fixed part that is fixed to the machining machine), and an abrasion element 3 (which corresponds to the removable part). In the embodiment shown in Figure 1, only the wheel support 2 is particularized for a specific model of machining machine called Bovone. The wheel support 2, according to the view provided by Figure 1, comprises a magnet 10, a drag pin 11, two pipe grooves 12, a receiving hole of the magnet 13, a plug of the magnet 14, a body of the support grinding wheel 15, three balancing holes of the grinding wheel support 17 and machine / support fixing means comprised of a complementary fixing hole 16 of the grinding means machine / support fixing included in the machine (not shown). The means the machine / support fixing means included in the machine may comprise a threaded rod that passes through the hole 16 and an internally threaded nut. On the other hand, the abrasion element 3 is universal and independent of the machining machine. The abrasion element 3, according to the view provided by Figure 1, has a circular shape and also comprises the following elements: an abrasion zone 4, a body of the abrasion element 5 manufactured entirely by a paramagnetic material (paramagnetic zone) , an intermediate zone 9, a drag hole of the abrasion element 6, three balancing holes of the abrasion element 7 and a bonding adhesive (not shown) that joins the abrasion zone 4 with the intermediate zone 9 and also the zone intermediate 9 with the paramagnetic zone 5.

La figura 1 adicionalmente muestra que tanto el soporte de muela 2 como el elemento de abrasión 3 comprenden superficies planas de contacto entre ambos elementos que maximizan el área de contacto entre ambos elementos, de tal forma que la recepción y retención del elemento de abrasión por parte del soporte de muela son optimizadas. De esta forma, el elemento de abrasión 3 comprende una superficie plana horizontal 25A y una superficie plana vertical 25B de contacto con el soporte de muela 2, donde ambas superficies planas son respectivamente complementarias de una superficie plana horizontal 24A y una superficie plana vertical 24B comprendidas en el soporte de muela 2. Para que la recepción y retención del elemento de abrasión 3 por parte del soporte de muela 2 estén optimizados tanto en forma de construcción como de funcionamiento, ambas piezas comprenden una tolerancia H7/h7 (definida según el sistema ISO de tolerancias y ajustes EN20286-2 : 1993 ) o inferior en sus superficies planas verticales. Por otro lado, los imanes mostrados en la figura 1 y que además son utilizados de forma preferida en todas las realizaciones de la invención, son imanes de neodimio, los cuales son imanes permanentes de aleación Ne.Fe.B, con gran potencia, unas 6 veces más que los imanes de ferrita. También indicar, que la zona paramagnética mostrada en la figura 1 está fabricada con acero, es decir, un material paramagnético fuerte ( ferromagnético ) para poder soportar la velocidad angular típica de este tipo de muelas (entre 2.500 y 3.500 r.p.m para una muela circular de diámetro 150 mm) . Con la realización mostrada en la figura 1, la muela es capaz de soportar una velocidad límite de 109 m/s (13.878 r.p.m. para un diámetro de 150 mm; r.p.m. = (V * 60000 )/ (J1*D) ) sin que se separe el elemento de abrasión del soporte de muela. Figure 1 additionally shows that both the wheel holder 2 and the abrasion element 3 comprise flat contact surfaces between both elements that maximize the contact area between both elements, such that the reception and retention of the abrasion element by of the tooth support are optimized. Thus, the abrasion element 3 comprises a horizontal flat surface 25A and a vertical flat surface 25B in contact with the wheel support 2, where both flat surfaces are respectively complementary to a horizontal flat surface 24A and a vertical flat surface 24B comprised in the wheel holder 2. In order for the reception and retention of the abrasion element 3 by the wheel holder 2 to be optimized both in the form of construction and operation, both parts comprise an H7 / h7 tolerance (defined according to the ISO system of tolerances and adjustments EN20286-2: 1993) or lower in its vertical flat surfaces. On the other hand, the magnets shown in Figure 1 and which are also preferably used in all embodiments of the invention, are neodymium magnets, which are permanent magnets of Ne.Fe.B alloy, with great power, 6 times more than ferrite magnets. Also indicate that the paramagnetic zone shown in Figure 1 is made of steel, that is, a strong paramagnetic material (ferromagnetic) to be able to withstand the typical angular speed of this type of wheel (between 2,500 and 3,500 rpm for a circular wheel of diameter 150 mm). With the embodiment shown in Figure 1, the wheel is capable of withstanding a limit speed of 109 m / s (13,878 rpm for a diameter of 150 mm; rpm = (V * 60000) / (J1 * D)) without being separate the abrasion element from the wheel holder.

La zona de abrasión 4 está dispuesta perimetralmente a lo largo del elemento de abrasión 3 y representa la zona de contacto con la pieza a ser mecanizada. El perfil de la zona de contacto de la zona de abrasión 4 comprende una zona interna 18 plana seguida de una zona externa 19 tipo chaflán. La zona de abrasión 4 de la figura 1 es del tipo metálica, es decir, la zona de abrasión 4 está compuesta por una mezcla de polvo de diamante y metal. Dado que la mecanización implica diferentes formas de tratamiento de la pieza a mecanizar, por ejemplo: canteo, biselado, acabado fino, etc., la zona de abrasión 4 presenta diferentes realizaciones por forma y composición adaptadas a dichas formas de tratamiento. Algunas de la formas de realización de la zona de abrasión se presentan más adelante como formas de realización de la invención.  The abrasion zone 4 is arranged perimetrically along the abrasion element 3 and represents the contact area with the workpiece. The profile of the contact area of the abrasion zone 4 comprises a flat internal zone 18 followed by an external chamfer type zone 19. The abrasion zone 4 of Figure 1 is of the metallic type, that is, the abrasion zone 4 is composed of a mixture of diamond and metal dust. Since the mechanization implies different forms of treatment of the piece to be machined, for example: edging, chamfering, fine finishing, etc., the abrasion zone 4 has different embodiments by shape and composition adapted to said forms of treatment. Some of the embodiments of the abrasion zone are presented below as embodiments of the invention.

Las figuras 2A y 2B muestran, respectivamente, una vista en alzado y en planta de la muela en dos partes 1 de la presente invención mostrada en la figura 1. Para representar el alzado, se ha realizado un corte a lo largo de la línea A-B mostrada en la vista en planta. En el caso concreto de las figuras 2A y 2B, la zona de abrasión 4 de la muela en dos partes para mecanizado 1 está configurada específicamente para mecanizar vidrio plano. Las dos partes de la muela 1 mostradas en las figuras 2A y 2B se encuentran unidas la una a la otra en configuración de trabajo para realizar la mecanización (canteo y biselado) de vidrio plano. La forma de realización mostrada en las figuras 2A y 2B comprende el soporte de muela 2 que está particularizado para el modelo de máquina de mecanizado denominado Bovone . El soporte de muela 2, según la vista proporcionada por las figuras 2A y 2B, comprende seis imanes 10, tres tetones de arrastre 11, tres ranuras de canalización/extracción 12, seis orificios receptores de imán 13, seis tapones de imán 14, un cuerpo del soporte de muela 15, un orificio de fijación del cuerpo del soporte de muela 16 como medio de fijación máquina/soporte y tres orificios de equilibrado del soporte de muela 17. Figures 2A and 2B show, respectively, an elevation and plan view of the wheel in two parts 1 of the present invention shown in Figure 1. To represent the elevation, a cut has been made along the line AB shown in plan view. In the specific case of Figures 2A and 2B, the abrasion zone 4 of the two-part grinding wheel for machining 1 is specifically configured to machine flat glass. The two parts of the wheel 1 shown in Figures 2A and 2B are attached to each other in working configuration to perform the machining (edging and chamfering) of flat glass. The embodiment shown in Figures 2A and 2B comprises the wheel support 2 which is particularized for the machining machine model called Bovone. The wheel holder 2, according to the view provided by Figures 2A and 2B, comprises six magnets 10, three drag lugs 11, three channeling / extraction grooves 12, six magnet receiving holes 13, six magnet plugs 14, a wheel support body 15, a fixing hole of the wheel support body 16 as a means of fixing machine / support and three balancing holes of the wheel support 17.

Por otro lado, el elemento de abrasión 3 que es universal e independiente de la máquina de mecanizado tiene forma circular y además está comprendido por los siguientes elementos: la zona de abrasión 4, la zona paramagnética 5 (cuerpo del elemento de abrasión) , la zona intermedia 9, tres orificios de arrastre del elemento de abrasión 6, tres orificios de equilibrado del elemento de abrasión 7 y un adhesivo de unión (no mostrado) que une la zona de abrasión 4 con la zona intermedia 9 y también la zona intermedia 9 con la zona paramagnética 5. La zona de abrasión 4 está dispuesta perimetralmente a lo largo del elemento de abrasión 3 y representa la zona de contacto con la pieza a ser mecanizada. El perfil de la zona de contacto de la zona de abrasión 4 comprende una zona interna 18 plana seguida de una zona externa 19 tipo chaflán.  On the other hand, the abrasion element 3 that is universal and independent of the machining machine has a circular shape and is also comprised of the following elements: the abrasion zone 4, the paramagnetic zone 5 (abrasion element body), the intermediate zone 9, three drag holes of the abrasion element 6, three balancing holes of the abrasion element 7 and a bonding adhesive (not shown) that joins the abrasion zone 4 with the intermediate zone 9 and also the intermediate zone 9 with the paramagnetic zone 5. The abrasion zone 4 is arranged perimetrically along the abrasion element 3 and represents the contact area with the workpiece. The profile of the contact area of the abrasion zone 4 comprises a flat internal zone 18 followed by an external chamfer type zone 19.

Las figuras 3A y 3B muestran, respectivamente, una vista en alzado a lo largo de la línea de corte C-D y en planta del soporte de muela de la presente invención mostrado en la figura 1. El soporte de muela 2, según la vista proporcionada por las figuras 3A y 3B, comprende seis imanes 10 distribuidos de forma equidistante a lo largo del perímetro circular del soporte de muela 2, tres tetones de arrastre 11 distribuidos de forma equidistante a lo largo del perímetro circular del soporte de muela 2, seis orificios receptores de imán 13, seis tapones de imán 14, un cuerpo del soporte de muela 15, tres ranuras de canalización/extracción 12 distribuidas de forma equidistante a lo largo del perímetro circular del soporte de muela 2 que conectan las partes interna y externa del cuerpo de muela 15, un orificio de fijación del cuerpo del soporte de muela 16 y tres orificios de equilibrado del soporte de muela 17. Figures 3A and 3B show, respectively, an elevation view along the CD and plan cutting line of the wheel support of the present invention shown in Figure 1. The wheel support 2, according to the view provided by Figures 3A and 3B, comprises six magnets 10 distributed equidistant along the circular perimeter of the wheel holder 2, three drag lugs 11 distributed equidistant along the circular perimeter of the wheel holder 2, six magnet receiving holes 13, six magnet plugs 14, a wheel holder body 15, three channeling / extraction slots 12 distributed equidistant along the circular perimeter of the wheel holder 2 connecting the internal and external parts of the wheel body 15, a fixing hole of the wheel holder body 16 and three balancing holes of the wheel holder 17.

Las figuras 4A y 4B muestran, respectivamente, una vista en alzado y en planta del elemento de abrasión de la presente invención mostrado en la figura 1. El elemento de abrasión 3 tiene forma circular y además está comprendido por los siguientes elementos: la zona de abrasión 4, la zona paramagnética 5 (el cuerpo del elemento de abrasión) , la zona intermedia 9, tres orificios de arrastre del elemento de abrasión 6 distribuidos de forma equidistante a lo largo del perímetro circular del elemento de abrasión, tres orificios de equilibrado del elemento de abrasión 7 y un adhesivo de unión (no mostrado) que une la zona de abrasión 4 con la zona intermedia 9 y también la zona intermedia 9 con la zona paramagnética 5. La zona de abrasión 4 está dispuesta perimetralmente a lo largo del elemento de abrasión 3 y representa la zona de contacto con la pieza a ser mecanizada. El perfil de la zona de contacto de la zona de abrasión 4 comprende una zona interna 18 plana seguida de una zona externa 19 inclinada tipo chaflán .  Figures 4A and 4B show, respectively, an elevational and plan view of the abrasion element of the present invention shown in Figure 1. The abrasion element 3 has a circular shape and is also comprised of the following elements: the area of abrasion 4, the paramagnetic zone 5 (the body of the abrasion element), the intermediate zone 9, three drag holes of the abrasion element 6 distributed equidistant along the circular perimeter of the abrasion element, three balancing holes of the abrasion element 7 and a bonding adhesive (not shown) that joins the abrasion zone 4 with the intermediate zone 9 and also the intermediate zone 9 with the paramagnetic zone 5. The abrasion zone 4 is arranged perimetrically along the element of abrasion 3 and represents the area of contact with the piece to be machined. The profile of the contact area of the abrasion zone 4 comprises a flat inner zone 18 followed by a chamfered inclined outer zone 19.

Tanto el material con el que se materializa la zona de abrasión 4 como la forma del perfil de la zona de abrasión 4 están definidos por el tipo de pieza a mecanizar y por el tipo de procedimiento de mecanizado que se realiza a dicha pieza. De esta forma, la zona de abrasión mostrada en las figuras 1, 2A-2B, 4A-4B a 9A-9B es de tipo metálica, es decir, es una composición de polvo de diamante y metal, si bien las formas de los perfiles mostradas en dichas figuras son diferentes. Both the material with which the abrasion zone 4 materializes and the shape of the profile of the abrasion zone 4 are defined by the type of workpiece and by the type of machining process performed on said workpiece. In this way, the abrasion zone shown in the Figures 1, 2A-2B, 4A-4B to 9A-9B is of the metallic type, that is, it is a diamond and metal powder composition, although the shapes of the profiles shown in said figures are different.

Las figuras 5A y 5B muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión 3 donde la zona de abrasión 4 comprende una zona interna 18 inclinada tipo chaflán seguida de una zona externa 19 inclinada tipo chaflán.  Figures 5A and 5B show, respectively, an elevation and plan view of an abrasion element 3 where the abrasion zone 4 comprises a chamfered inclined internal zone 18 followed by a chamfer inclined external zone 19.

Las figuras 6A y 6B muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión 3 donde la zona de abrasión 4 comprende una zona interna 18 plana seguida de una zona externa 19 inclinada tipo chaflán. El elemento de abrasión 3 mostrado en las figuras 6A y 6B se diferencia de los mostrados en figuras precedentes en que los orificios de equilibrado se llevan a cabo desde la parte inferior del elemento de abrasión 3 en lugar desde la parte superior. El elemento de abrasión 3 también se diferencia de los mostrados en figuras precedentes en que en que no comprende la zona intermedia 9 y en que comprende unas hendiduras 20 dispuestas radialmente .  Figures 6A and 6B show, respectively, an elevational and plan view of an abrasion element 3 where the abrasion zone 4 comprises a flat internal zone 18 followed by an inclined chamfer-like external zone 19. The abrasion element 3 shown in Figures 6A and 6B differs from those shown in previous figures in that the balancing holes are carried out from the bottom of the abrasion element 3 instead of from the top. The abrasion element 3 also differs from those shown in previous figures in that it does not comprise the intermediate zone 9 and in that it comprises radially arranged slits 20.

Las figuras 7A y 7B muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión 3 donde la zona de abrasión 4 comprende una zona interna 18 plana seguida de una zona externa 19 inclinada tipo chaflán y hendiduras 20 distribuidas de forma inclinada y radial.  Figures 7A and 7B show, respectively, an elevation and plan view of an abrasion element 3 where the abrasion zone 4 comprises a flat internal zone 18 followed by an inclined chamfer-like external zone 19 and inclined slits 20 and radial.

Las figuras 8A y 8B muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión 3 con un perfil de abrasión medio-redondo de la zona de abrasión 4 donde el elemento de abrasión 3 adicionalmente comprende hendiduras parciales 22 distribuidas de forma radial a lo largo del perímetro del elemento de abrasión 3.  Figures 8A and 8B show, respectively, an elevational and plan view of an abrasion element 3 with a half-round abrasion profile of the abrasion zone 4 where the abrasion element 3 additionally comprises partial grooves 22 distributed in a manner radial along the perimeter of the abrasion element 3.

Las Figuras 9A y 9B muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión 3 con un perfil de la zona de abrasión 4 redondeado. El elemento de abrasión 3 adicionalmente comprende seis hendiduras 21 distribuidas de forma radial, inclinada e equidistante a lo largo del perímetro de la zona de abrasión 4. Figures 9A and 9B show, respectively, an elevation and plan view of an abrasion element 3 with a profile of the rounded abrasion zone 4. He Abrasion element 3 additionally comprises six grooves 21 distributed radially, inclined and equidistant along the perimeter of the abrasion zone 4.

Otro tipo de material con el que se materializa la zona de abrasión 4 es el tipo resina. El tipo resina es una composición que se basa en mezclar polvo de diamante con resinas poliméricas. El proceso de mecanizado de piezas con este tipo de elemento de abrasión 3 se optimiza con un tipo de soporte de muela 2 como el divulgado en las figuras 10A y 10B. Este soporte de muela 2 adicionalmente comprende sobre el soporte de muela 2 mostrado en la figuras 3A y 3B, una ranura circular interior de canalización 8 que comunica con las tres ranuras de canalización/extracción 12 comprendidas en el soporte de muela. Esta ranura circular interior de canalización 8 mejora la evacuación de los restos generados durante el proceso de mecanizado.  Another type of material with which the abrasion zone 4 materializes is the resin type. The resin type is a composition that is based on mixing diamond dust with polymeric resins. The process of machining parts with this type of abrasion element 3 is optimized with a type of wheel support 2 as disclosed in Figures 10A and 10B. This wheel support 2 additionally comprises on the wheel support 2 shown in Figures 3A and 3B, an internal circular channel groove 8 that communicates with the three channelization / extraction grooves 12 comprised in the wheel support. This internal circular channel groove 8 improves the evacuation of the remains generated during the machining process.

Las Figuras 11A y 11B muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión 3 de tipo resina y perfil recto de la zona de abrasión. Por otro lado, las figuras 12A y 12B muestran, respectivamente, una vista en alzado y en planta de un elemento de abrasión 3 de tipo resina mostrado en las figuras 11A y 11B al que se le han realizado unas hendiduras internas radialmente inclinadas 23.  Figures 11A and 11B show, respectively, an elevational and plan view of an abrasion element 3 of the resin type and straight profile of the abrasion zone. On the other hand, Figures 12A and 12B show, respectively, an elevational and plan view of a resin-type abrasion element 3 shown in Figures 11A and 11B which have been made radially inclined internal grooves 23.

Las figuras 13A y 13B muestran, respectivamente, una vista en alzado, a lo largo de la línea de corte A-B-C, y en planta de la muela en dos partes de la presente invención para un sistema de retención por tornillos entre el elemento de abrasión y el soporte de muela. Es decir, esta realización se diferencia de la mostrada en las figuras 2A y 2B en que el conjunto de los seis imanes son sustituidos por un conjunto de tres elementos roscados (tornillos) 28. De esta forma, cada elemento roscado 28 atraviesa los orificios pasantes 26 del elemento de abrasión para ser finalmente introducidos en los orificios roscados 27. Dado que no existen imanes, el material del que se fabrica el cuerpo del elemento de abrasión no necesita necesariamente ser de un material paramagnético . Las figuras 14A y 14B muestran, respectivamente, una vista en alzado, a lo largo de la linea de corte A-B-C, y en planta del soporte de muela de la presente invención mostrado en las figuras 13A y 13B, donde se aprecian los orificios roscados 27 y los elementos roscados 28. Las figuras 15A y 15B muestran, respectivamente, una vista en alzado y en planta del elemento de abrasión de la presente invención mostrado en las figuras 13A y 13B, donde se aprecian los orificios pasantes 26. Figures 13A and 13B show, respectively, an elevation view, along the line of cut ABC, and plan of the wheel in two parts of the present invention for a screw retention system between the abrasion element and The tooth support. That is, this embodiment differs from that shown in Figures 2A and 2B in that the set of the six magnets are replaced by a set of three threaded elements (screws) 28. In this way, each threaded element 28 passes through the through holes. 26 of the abrasion element to finally be introduced into the holes threaded 27. Since there are no magnets, the material from which the body of the abrasion element is manufactured does not necessarily need to be of a paramagnetic material. Figures 14A and 14B show, respectively, an elevation view, along the line of cut ABC, and in plan of the wheel support of the present invention shown in Figures 13A and 13B, where the threaded holes 27 are appreciated and the threaded elements 28. Figures 15A and 15B show, respectively, an elevational and plan view of the abrasion element of the present invention shown in Figures 13A and 13B, where through holes 26 are appreciated.

Claims

REIVINDICACIONES 1. - Soporte de muela (2) caracterizado por que comprende un cuerpo del soporte (15), el cual está configurado para recibir y retener un elemento de abrasión (3) tal que dicho elemento de abrasión (3) es intercambiable . 1. - Wheel support (2) characterized in that it comprises a body of the support (15), which is configured to receive and retain an abrasion element (3) such that said abrasion element (3) is interchangeable. 2. - Soporte de muela (2), según la reivindicación 1, donde el cuerpo del soporte (15) adicionalmente comprende unos medios de retención (10, 11, 26, 27, 28) que retienen el elemento de abrasión (3) .  2. - Wheel support (2) according to claim 1, wherein the body of the support (15) additionally comprises retention means (10, 11, 26, 27, 28) that retain the abrasion element (3). 3. - Soporte de muela (2), según la reivindicación 2, donde los medios de retención están seleccionados entre: al menos un imán (10), al menos un tetón de arrastre (11) y combinación de ambos.  3. - Wheel support (2), according to claim 2, wherein the retention means are selected from: at least one magnet (10), at least one drag pin (11) and combination of both. 4. - Soporte de muela (2), según la reivindicación 2, donde los medios de retención están comprendidos por al menos un orificio roscado (27) realizado en el cuerpo del soporte de muela (5) y al menos un elemento roscado (28), tal que dicho elemento roscado atraviesa un orificio (26) provisto en el elemento de abrasión para ser retenido en el orificio roscado.  4. - Wheel support (2), according to claim 2, wherein the retention means are comprised of at least one threaded hole (27) made in the body of the wheel support (5) and at least one threaded element (28 ), such that said threaded element passes through a hole (26) provided in the abrasion element to be retained in the threaded hole. 5. - Soporte de muela (2), según una cualquiera de las reivindicaciones anteriores, donde el cuerpo del soporte (15) adicionalmente comprende al menos un orificio de equilibrado (17) que mantiene equilibrado dicho cuerpo del soporte (15) cuando dicho cuerpo del soporte (15) gira a una velocidad angular predeterminada.  5. - Wheel support (2), according to any one of the preceding claims, wherein the support body (15) additionally comprises at least one balancing hole (17) that keeps said support body balanced (15) when said body of the support (15) rotates at a predetermined angular velocity. 6. - Soporte de muela (2), según una cualquiera de las reivindicaciones anteriores, donde el cuerpo del soporte 6. - Wheel support (2), according to any one of the preceding claims, wherein the body of the support (15) adicionalmente comprende al menos una superficie de contacto con el elemento de abrasión de forma y dimensiones predeterminadas, tal que dicha superficie de contacto es complementaria de una superficie de contacto comprendida en el elemento de abrasión. (15) additionally comprises at least one contact surface with the abrasion element of predetermined shape and dimensions, such that said contact surface is complementary to a contact surface comprised in the abrasion element. 7. - Soporte de muela (2), según una cualquiera de las reivindicaciones anteriores, donde el cuerpo del soporte (15) adicionalmente comprende al menos una ranura de canalización/extracción (12) que canaliza hacia el exterior del cuerpo del soporte (15) unos residuos producidos durante un proceso de mecanización y además, dicha ranura de canalización/extracción (12) permite una rápida extracción del elemento de abrasión (3) . 7. - Grinding wheel support (2), according to any one of the preceding claims, wherein the support body (15) additionally comprises at least one channeling / extraction groove (12) which channels outwardly from the support body (15 ) waste produced during a machining process and in addition, said groove of channeling / extraction (12) allows a rapid extraction of the abrasion element (3). 8. - Elemento de abrasión (3) caracterizado por que comprende un cuerpo del elemento de abrasión (5) tal que dicho cuerpo del elemento de abrasión (5) está configurado para ser recibido y retenido por el cuerpo del soporte (15) comprendido en el soporte de muela (2) definido en una cualquiera de las reivindicaciones 1 a 7.  8. - Abrasion element (3) characterized in that it comprises a body of the abrasion element (5) such that said body of the abrasion element (5) is configured to be received and retained by the support body (15) comprised in the wheel support (2) defined in any one of claims 1 to 7. 9.- Elemento de abrasión (3) según la reivindicación 8, donde el elemento de abrasión comprende una zona paramagnética que conforma al menos parcialmente el cuerpo del elemento de abrasión de tal forma que el elemento de abrasión es retenido por el al menos un imán comprendido en el soporte de muela (2) definido en una cualquiera de las reivindicaciones 1 a 7.  9. Abrasion element (3) according to claim 8, wherein the abrasion element comprises a paramagnetic zone that at least partially forms the body of the abrasion element such that the abrasion element is retained by the at least one magnet comprised in the wheel holder (2) defined in any one of claims 1 to 7. 10. - Elemento de abrasión (3) según la reivindicación 8 ó 9, donde el elemento de abrasión (3) adicionalmente comprende al menos una superficie de contacto con el soporte de muela de forma y dimensiones predeterminadas.  10. - Abrasion element (3) according to claim 8 or 9, wherein the abrasion element (3) additionally comprises at least one contact surface with the molar support of predetermined shape and dimensions. 11. - Elemento de abrasión (3) según una cualquiera de las reivindicaciones 8 a 10, donde el elemento de abrasión (3) adicionalmente comprende un orificio de arrastre (6) complementario del tetón de arrastre (11) definido en la reivindicación 4.  11. - Abrasion element (3) according to any one of claims 8 to 10, wherein the abrasion element (3) additionally comprises a drag hole (6) complementary to the drag pin (11) defined in claim 4. 12. - Elemento de abrasión (3) según una cualquiera de las reivindicaciones 8 a 11, donde el elemento de abrasión (3) adicionalmente comprende una zona de abrasión (4) fabricada en un compuesto predeterminado con propiedades abrasivas, donde dicha zona de abrasión (4) está situada sobre el cuerpo del elemento de abrasión (5) . 12. - Abrasion element (3) according to any one of claims 8 to 11, wherein the abrasion element (3) additionally comprises an abrasion zone (4) made of a predetermined compound with properties abrasives, where said abrasion zone (4) is located on the body of the abrasion element (5). 13. - Elemento de abrasión (3) según una de las reivindicaciones 8 a 12, donde el elemento de abrasión (3) adicionalmente comprende al menos un orificio pasante (26) en correspondencia con el orificio roscado (27) definido en la reivindicación 4.  13. - Abrasion element (3) according to one of claims 8 to 12, wherein the abrasion element (3) additionally comprises at least one through hole (26) corresponding to the threaded hole (27) defined in claim 4 . 14. - Elemento de abrasión (3) según una de las reivindicaciones 8 a 13, donde el cuerpo del elemento de abrasión (5) adicionalmente comprende al menos un orificio de equilibrado (7) que mantiene equilibrado el elemento de abrasión (3) cuando dicho elemento de abrasión (3) gira a una velocidad angular predeterminada.  14. - Abrasion element (3) according to one of claims 8 to 13, wherein the body of the abrasion element (5) additionally comprises at least one balancing hole (7) that keeps the abrasion element (3) balanced when said abrasion element (3) rotates at a predetermined angular velocity. 15. - Muela en dos partes para mecanizado (1) caracterizada por que comprende un soporte de muela (2) según una cualquiera de las reivindicaciones 1 a 7, y un elemento de abrasión (3) según una cualquiera de las reivindicaciones 8 a 14.  15. - Two-part grinding wheel for machining (1) characterized in that it comprises a wheel support (2) according to any one of claims 1 to 7, and an abrasion element (3) according to any one of claims 8 to 14 .
PCT/ES2012/070309 2011-05-18 2012-05-03 Two-part grinder for machining Ceased WO2012156558A2 (en)

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ES201130802A ES2401775B1 (en) 2011-05-18 2011-05-18 MUELA IN TWO PARTS FOR MACHINING

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ES2401775B1 (en) 2014-09-05
ES2401775A2 (en) 2013-04-24
ES2401775R1 (en) 2013-11-04
EP2524766A2 (en) 2012-11-21
WO2012156558A3 (en) 2013-01-03
WO2012156558A4 (en) 2013-03-07
EP2524766A3 (en) 2013-02-27

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